Zames, 41, is the co-head of global fixed income in the
investment bank and the head of capital markets within the
mortgage bank.

In his new role as CIO, Zames will still continue his
mortgage-related responsibilities and he will also join the
firm's Operating Committee, the bank said in its release.

"Matt Zames is a world-class risk manager and executive --
highly regarded for his judgment and integrity. And Daniel Pinto
is an outstanding leader as well, who has managed markets
businesses successfully around the world and is helping us drive
our international growth agenda," JPMorgan's CEO Jamie Dimon said in a
statement.